22457830 has 8 divisors (see below), whose sum is σ = 40424112. Its totient is φ = 8983128.

The previous prime is 22457807. The next prime is 22457839. The reversal of 22457830 is 3875422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22457792 and 22457801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22457839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122882 + ... + 1122901.

It is an arithmetic number, because the mean of its divisors is an integer number (5053014).

Almost surely, 2^22457830 is an apocalyptic number.

22457830 is a deficient number, since it is larger than the sum of its proper divisors (17966282).

22457830 is a wasteful number, since it uses less digits than its factorization.

22457830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245790.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 22457830 is about 4738.9692972207. The cubic root of 22457830 is about 282.1343272995.

The spelling of 22457830 in words is "twenty-two million, four hundred fifty-seven thousand, eight hundred thirty".